diff --git a/appl/rsh/rsh_locl.h b/appl/rsh/rsh_locl.h
index f1ca5874d..befb05e66 100644
--- a/appl/rsh/rsh_locl.h
+++ b/appl/rsh/rsh_locl.h
@@ -66,6 +66,9 @@
 #ifdef HAVE_NETINET6_IN6_H
 #include <netinet6/in6.h>
 #endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
 
 #ifdef HAVE_PWD_H
 #include <pwd.h>